Browsing by Author "Diyarbakirli, S"

Now showing 1 - 4 of 4

The Relationship of Callosal Anatomy To Paw Preference in Dogs
(Swets Zeitlinger Publishers, 2000) Aydinlioglu, A; Arslan, K; Erdogan, AR; Ragbetli, MÇ; Keles, P; Diyarbakirli, S
Previous studies have described the paw preference and asymmetry in dog brains, based on experimental studies. The purpose of the present study is to investigate a possible association between callosal anatomy and paw preference in dogs. The midsagittal area of the dog corpus callosum was measured in its entirety and in six subdivisions in a sample of 21 brains obtained from 9 male and 12 female mongrel dogs which had paw preference testing. The present study showed significant paw differences in dog corpus callosum. A posterior segment of the callosum, the isthmus, was significantly larger in the right pawedness than the left.
Sex Differences in Dog Corpus Callosum
(Swets Zeitlinger Publishers, 2000) Aydinlioglu, A; Arslan, K; Ragbetli, MÇ; Erdogan, AR; Keles, P; Diyarbakirli, S
Human studies reported sex differences in size and shape of the corpus callosum. These observations have been contested. The purpose of the present study is to investigate possible sex differences in the corpus callosum of dogs. The entire brains including the medulla from 12 female and 9 male adult mongrel dogs wore removed and weighed. Total and partial area measurements of the callosum were made from photographic tracings of its outline. The callosum was partitioned into 3 regions; anterior half, posterior half, posterior one-fifth. The total corpus callosum, anterior half, posterior half, and posterior fifth or splenium areas were measured. Sex differences were found. The anterior half, the posterior half, the posterior fifth, and the total callosum were significantly greater in absolute area in males than in females.
Symptomatic Anomalies and Arthrotic Formations of the Axis Vertebrae in Eastern Anatolian People - a Local Investigation
(Univ West indies Faculty Medical Sciences, 2004) Aydynlyoolu, A; Yesilyurt, H; Erdem, S; Diyarbakirli, S
At the craniocervical junction, developmental anomalies of the axis may produce clinical symptoms by compressing the upper cervical cord during movements of the head and neck. The present study aimed at investigating several varieties and deformities of the axis on skeletal specimens of Eastern Anatolian origin. On 76 specimens, developmental anomalies and the variants of the second vertebrae (axis) were investigated. Hypoplasia of the dens axis in one specimen, the dens axis of a child with a bifid apex in another specimen and an arthrotic formation located on the apex of the dens in six axes were found A bone protrusion narrowing the transverse foramen was also observed The types of absence of the dens axis and clinical symptoms that may be caused by them are discussed It was concluded that the frequency of arthrotic formations might reflect the possibility that the individuals suffered less commonly from neck pain due to arthrotic degeneration.
Variants and Deformities of Atlas Vertebrae in Eastern Anatolian People
(Saudi Med J, 2004) Kavakli, A; Aydinlioglu, A; Yesilyurt, H; Kus, I; Diyarbakirli, S; Erdem, S; Anlar, Ö
Objective: At the craniocervical junction, developmental anomalies of the atlas may produce clinical symptoms by compressing on the vertebral artery, particularly during extreme rotational movements of the cervical spine. The aim of the present study was to investigate several varieties and deformities of the atlas vertebra from the skeletal specimens of Eastern Anatolian people. Methods: This study was carried out over a 3-year period, 2000 through to 2002 in the Department of Anatomy, Firat, Yuzuncu Yil and Ataturk University, Turkey. Developmental anomalies and the variants of the first vertebrae were investigated on 86 atlas. Results: Ponticulus posterior was observed with a low frequency on right as 2.3%. The bilateral localization was 10.5% and the left-side localization was 9.3%. Ponticulus lateralis showed an equal localization as 1.2% on the right, 1.2% on the left and 1.2% bilateral. In the present study, a complete subdivision of the joint surface was observed in 11 atlases (12.8%). Processus infratransversarius atlantis with a frequency between 1.2-7%, arthrotic formation and corona atlantis peridentals in 8 cases (9.3%) were also found. Conclusion: The low frequency for fonticulus posterior might be peculiar to the population living in this area.